#include<iostream>
using namespace std;
class Date
{
public:
	Date(int year=2024,int month=11,int day=17)
	{
		_year = year;
		_month = month;
		_day = day;
	}
	void Print()
	{
		cout << _year << "/" << _month << "/" << _day << endl;
	}
	int Add(int x, int y);
private:
	int _year;
	int _month;
	int _day;
};
int Date::Add(int x=1,int y=2)
{
	return x + y;
}
int main()
{
	Date d1;
	d1.Print();
	//cout << Date::Add << endl;
	int c=strlen("Hello");
	cout << c << endl;
	return 0;
}